Sudden Infant Death Syndrome (SIDS) happens to babies, from 1 month to 1 year in age, but most frequently between 2 and 4 months of age.
Recently I interviewed a former police detective who handled over 250 SIDS cases for a major US city. She revealed her full name and I was able to independently verify her employment at the police department.
In the interview, she revealed that 50% of the SIDS cases happened within 48 hours after a vaccine was given and about 70% of the cases happened within one week of a vaccine.